Bac Ninh

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The climate in Bac Ninh, located in Vietnam, can be described as humid subtropical, with distinct seasons. Throughout the year, there are noticeable fluctuations in both air temperature and rainfall. Overall, the weather is characterized by warm, and at times hot, humid summers and cooler, drier winters.

The year in Bac Ninh is divided into two main seasons. The dry and relatively cool season lasts from approximately November to April. During this time, average temperatures range from 17°C to 25°C, and precipitation is minimal, especially from December to March. From May to October, the hot and humid season sets in. Temperatures during this period can rise above 30°C, particularly in June and July. This period also coincides with the rainy season, which peaks in August with the highest number of rainy days and significant rainfall.

Bac Ninh, located in Vietnam, experiences a pronounced annual temperature cycle with clearly defined seasons. The coldest months are December and January. During this period, the average air temperature stays around 17.2°C – 17.5°C. Nighttime lows can drop to 13.9°C – 14.1°C, creating a noticeable chill, while daytime highs usually reach a comfortable 20.3°C – 21.1°C. The hottest period falls in June, with an average temperature of 30.3°C, and July, with an average of 29.9°C. In these summer months, daytime heat can be quite intense, reaching 33.1°C – 33.5°C, while nights remain very warm, with temperatures staying above 26.8°C – 27.1°C.

The summer season in Bac Ninh, which lasts from approximately May to September, is characterized as hot and, given the amount of rainfall and wet days, quite humid. Average daytime temperatures during this time consistently exceed 31°C (for example, in May the maximum average temperature is 31.6°C, and in June it is 33.5°C), while average nighttime temperatures remain high, ranging between 25–27°C. Winter, in contrast, brings significant relief from the summer heat. From December to February, the weather becomes cool and more comfortable for those who prefer moderate temperatures. Average daytime highs in the winter months range from 20°C to 22°C, while nighttime lows drop to 14–16°C. This period can be described as a mild winter, without frost.

Transitional seasons—spring (March–April) and autumn (October–November)—show a gradual shift in temperature. In spring, the temperature rises steadily: in March, the average is already 22.4°C, rising to 25.3°C in April, foreshadowing the arrival of the summer heat. In autumn, a gradual cooling occurs: from an average of 28.2°C in September, the temperature drops to 24.9°C in October and 22.6°C in November. Daily temperature fluctuations in Bac Ninh throughout the year are moderate. The difference between the average maximum and average minimum temperatures is usually around 6–7°C, providing relatively stable temperature conditions throughout the day without sharp changes between day and night.

Bac Ninh experiences pronounced seasonal rainfall throughout the year, typical of Vietnam's climate. The year is clearly divided into a wet season, when rains are frequent and heavy, and a dry season with minimal precipitation.

The rainy season in Bac Ninh usually lasts from May to October. The highest amount of rainfall occurs during the summer months, peaking in August, when an average of 14 mm of precipitation and as many as 26 rainy days are recorded. This means that in August, it rains almost every day. July (10 mm, 22 rainy days) and September (11 mm, 22 rainy days) are also very wet months. During this period, rainfall can be quite intense and frequent, which is typical of monsoonal influence.

The dry season spans from November to April. In these months, the amount of precipitation drops significantly. The driest month is December, with only about 1 mm of rainfall, and the number of rainy days decreases to 6. January, February, and November are also characterized by very low precipitation (about 2 mm) and a relatively small number of rainy days (from 9 to 11), making this time more predictable and comfortable for outdoor activities without the fear of sudden downpours.

When planning a trip to Bac Ninh, it is important to consider its humid subtropical climate with distinct seasons, which directly influences your choice of wardrobe. From November to April, the city experiences a drier and cooler season. During this time, especially from December to February when average temperatures range from 17°C to 19°C, you will find light jackets, sweaters, jeans or heavy trousers, and closed-toe shoes useful. Although rainfall is low, the number of rainy days can reach 6–14, so a compact umbrella or a light raincoat won't go amiss.

From May to October, Bac Ninh enters a hot and humid rainy season. Average temperatures rise to 28–30°C, and rainfall increases significantly, peaking in August (14 mm and 26 rainy days). During this period, your suitcase should include light, breathable clothing made from natural fabrics (cotton, linen), shorts, T-shirts, and sundresses. Be sure to bring a reliable umbrella or a high-quality raincoat, as well as waterproof shoes or quick-drying sandals. Don't forget sunscreen with high SPF, a hat, and sunglasses for protection from the intense sun, along with insect repellent, as they are especially active during the humid season.

Regardless of the season, you will need comfortable shoes for walking around the city and its surroundings. Layering your clothes will be particularly relevant during the transitional months (March, April, October, November) when the weather can be changeable, or if you plan to visit places with air conditioning. A light scarf or stole can be useful for both sun protection and for cool evenings or air-conditioned rooms. A small backpack for day trips to carry water, an umbrella, and other essentials will also make your journey more comfortable.